[3][4] The 28 nations to compete were determined based on the top-ranked player from each country from the Official World Golf Ranking as of 3 September 2018.

These 28 seeded players selected a partner from the same country ranked in the top 500 of the OWGR.

Five countries with an eligible player did not compete: Argentina, Austria, Chinese Taipei, Chile and Paraguay (withdrew as alternate).

[5] Conditions were difficult for the second day foursomes with rain and gusty winds.

[6] On the third day Belgium had their second fourball round of 63 and took a 5-stroke lead, ahead of Italy, Mexico and South Korea.